#include<stdio.h>
int vowel(char ch)
{
    if(ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' || ch == 'A' ||ch == 'E' ||ch == 'I'||ch == 'O'||ch == 'U')
    return 1;
    else return 0;
}
int main()
{
    char ch;
    int count = 0;
    while(scanf("%c", &ch), ch != '\n')
    {
        if(vowel(ch) != 0)
            count ++;
    }
    printf("%d\n", count);
    return 0;
}